Re: [PATCH v2 1/9] dt-bindings: arm: Add support for DSB element

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On 19/01/2023 08:41, Tao Zhang wrote:
> Add property "qcom,dsb-elem-size" to support DSB(Discrete Single
> Bit) element for TPDA. Specifies the DSB element size supported
> by each monitor connected to the aggregator on each port. Should
> be specified in pairs (port, dsb element size).
> 
> Signed-off-by: Tao Zhang <quic_taozha@xxxxxxxxxxx>
> Signed-off-by: Tao Zhang <taozha@xxxxxxxxxxxxxxxx>

You are the same person and it is still the same organization
(Qualcomm), right? Only one SoB.

> ---
>  .../bindings/arm/qcom,coresight-tpda.yaml          | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
> index 2ec9b5b..298db7f 100644
> --- a/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
> +++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpda.yaml
> @@ -58,6 +58,26 @@ properties:
>      minItems: 1
>      maxItems: 2
>  
> +  qcom,dsb-element-size:
> +    description: |
> +      Specifies the DSB(Discrete Single Bit) element size supported by
> +      each monitor connected to the aggregator on each port. Should be
> +      specified in pairs <port, dsb element size>.

s/port/port number/

> +
> +      Note: The maximum value of the port number depends on how many
> +      input ports the current TPDA has. DSB element size currently only
> +      supports 32-bit and 64-bit.
> +    $ref: /schemas/types.yaml#/definitions/uint32-matrix
> +    items:

Are some reasonable maxItems known?

> +      items:
> +        - description: |
> +            "port" indicates TPDA input port number

What is "port"? You quoted it like it was some name of variable or
property. Where is then?

> +          minimum: 0
> +        - description: |
> +            "dsb element size" indicates dsb element size

"A" indicates A. This sentence does not make sense.

Also missing units.

s/dsb/DSB/

> +          minimum: 0
> +          maximum: 64
> +
>    clocks:
>      maxItems: 1
>  
> @@ -100,6 +120,8 @@ examples:
>         compatible = "qcom,coresight-tpda", "arm,primecell";
>         reg = <0x6004000 0x1000>;
>  
> +       qcom,dsb-element-size = <0 32>;
> +
>         clocks = <&aoss_qmp>;
>         clock-names = "apb_pclk";
>  

Best regards,
Krzysztof




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